Pith Number

pith:HJHYJDAG

pith:2026:HJHYJDAGNGM2E3MTXW7F4GXY3X

not attested not anchored not stored refs pending

Gaussian processes on ray-guided transformed uniform grids for fast, flexible, and auto-differentiable adaptive source reconstruction in lens modelling

Coleman M. Krawczyk, Thomas E. Collett, Tian Li, Wolfgang J. R. Enzi

arxiv:2606.30620 v1 · 2026-06-29 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HJHYJDAGNGM2E3MTXW7F4GXY3X}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-30T02:18:23.096781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a4f848c066999a26d93bdbe5e1af8dddace7478749cfc8026987b0015118fa5

Aliases

arxiv: 2606.30620 · arxiv_version: 2606.30620v1 · doi: 10.48550/arxiv.2606.30620 · pith_short_12: HJHYJDAGNGM2 · pith_short_16: HJHYJDAGNGM2E3MT · pith_short_8: HJHYJDAG

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HJHYJDAGNGM2E3MTXW7F4GXY3X \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3a4f848c066999a26d93bdbe5e1af8dddace7478749cfc8026987b0015118fa5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5612b30e493fd748ce280aa13d13e3b04e03b35840e1d8c8e495818492d5b394",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-06-29T17:52:31Z",
    "title_canon_sha256": "226bda1bede00a026b47b0f053d1744564c07d7830e59392cf2ebb77222d123c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30620",
    "kind": "arxiv",
    "version": 1
  }
}